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A blue main sequence star with an unusual spectrum, Achernar has a magnitude of +0.54, making it the brightest of the stars of Eridanus, and the ninth brightest in the entire sky.
Bright Achernar lies at the extreme southern tip of the star-river Eridanus, less than a degree from its southernmost border with neighbouring Hydrus.
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Imagery provided by Aladin sky atlas
Miram w Carinae Kapteyn's Star DO Cephei Kruger 60 A La Superba Kepler-102 Mazaalai Xi Boötis B x Carinae Mekbuda KR Muscae Kepler-444 Polis π Cephei Pincoya s Velorum A Struve 2398 B ρ Leonis TZ Arietis Nashira Petra θ Hydrae ο1 Cygni Chaophraya b Velorum AX Microscopii AU Microscopii CS Camelopardalis 41 Draconis 75 Cygni a Velorum 47 Cygni Nosaxa HD 37131 GX Andromedae Groombridge 1618 Gliese 887 Gliese 687 Gliese 440 IL Aquarii k Hydrae HR 6842 Ebla e Aquilae Erakis ε Indi Felixvarela Gakyid d Lupi ν2 Canis Majoris Proxima Centauri FL Virginis BF Orionis Betelgeuse Polaris Teegarden's Star ζ Arae Cerberus Ran δ Muscae Capella ν Cephei γ Pavonis Alnilam δ Caeli 15 Orionis Deneb π5 Orionis Thabit Alchiba τ Ceti Tevel Naos ι1 Scorpii Koeia χ Cygni Alfirk θ Circini Antares ν Persei ο Capricorni B Sargas Azmidi HR 1911 U Sagittarii 52 Orionis Schedar Avior Atria Sirius B 61 Cygni A HD 37130 Sharjah Mebsuta Unurgunite ε Reticuli UV Ceti Arneb σ Orionis HO Librae Hind's Crimson Star Mira van Maanen's Star ρ Cygni Mirfak Adhafera Acubens β Pictoris Diya η Carinae α Centauri A Dombay Ross 154 Achird Mu Aquilae WX Ursae Majoris Wolf 498 Wolf 359 Suhail Wezen EE Leonis Berehynia Hatysa Sadr Tureis Rigel
Achernar
Hertzprung-Russell diagram plotting the temperature and luminosity of Achernar (marked by the red circle) relative to other stars.
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